Селектор :password

$( ":password" ) is equivalent to $( "[type=password]" ). As with other pseudo-class selectors (those that begin with a ":") it is recommended to precede it with a tag name or some other selector; otherwise, the universal selector ( "*" ) is implied. In other words, the bare $( ":password" ) is equivalent to $( "*:password" ), so $( "input:password" ) should be used instead.

• Because :password is a jQuery extension and not part of the CSS specification, queries using :password cannot take advantage of the performance boost provided by the native DOM querySelectorAll() method. For better performance in modern browsers, use [type="password"] instead.